Home / 19,221.52-28,823.62-8,122.49

Finding the Fourth Proportional to 19,221.52, 28,823.62 and 8,122.49

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Solution

The fourth proportional to 19,221.52, 28,823.62 and 8,122.49 is: 12,180.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.52 : 28,823.62 = 8,122.49 : x
  2. Step 2: Convert to fraction form
    19,221.52/28,823.62 = 8,122.49/x
  3. Step 3: Cross multiply
    19,221.52x = 28,823.62 × 8,122.49
  4. Step 4: Simplify right side
    19,221.52x = 234,119,524.60
  5. Step 5: Solve for x
    x = 234,119,524.60/19,221.52
  6. Step 6: Final answer
    x = 12,180.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.